Where does the term “5th Wheeler” come from?

The term “fifth wheeler” comes from the fact that the modern day fifth wheel hitch, resembles the horizontal wheel-like bearing that enabled the front axle of a four wheel horse drawn wagon to be steered. This steering bearing was in the first instance built like a wheel on its side. Hence “fifth wheel”.

As applied in the recreation vehicle industry the arrangement is simply a smaller version of the system which has been in use on every semi-trailer for decades.

In North America rigs using this type of hitch are the most popular. So the concept is not new.

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Please note that all of the information that appears on this website applies to new 5th wheelers sold by Venture Sales Pty Ltd in Toowoomba QLD. Specifications and features of older and second hand 5th wheelers are not covered by this information.

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